Results 91 to 100 of about 253,923 (206)

Thermal Behavior of High-Speed Helical Gear Trains Investigated [PDF]

open access: yes
High-speed and heavily loaded gearing are commonplace in the rotorcraft systems employed in helicopter and tiltrotor transmissions. The components are expected to deliver high power from the gas turbine engines to the high-torque, low-speed rotor ...
Handschuh, Robert F.
core   +1 more source

Warping Space: High-Speed Rail and Returns to Scale in Local Labor Markets [PDF]

open access: yes, 2014
Local returns to scale in the labor market have been notoriously difficult to disentangle from increasing returns in the product market and from the spatial sorting of workers and firms as a source for regional variation in productivity. In this paper we
Heuermann, Daniel F.   +1 more
core  

Snapshots of Obama’s first 100 Days: A French Spring in Washington? [PDF]

open access: yes, 2010
When Barack Obama fielded questions from an adoring French audience in Strasbourg earlier this month, he pleased his hosts by singling out a shining example of European ingenuity in public transportation – the high-speed rail system.
Kelley, Robert
core  

Urgency is a Non-monotonic Function of Pulse Rate [PDF]

open access: yes, 2007
Magnitude estimation was used to assess the experience of urgency in pulse-train stimuli (pulsed white noise) ranging from 3.13 to 200 Hz. At low pulse rates, pulses were easily resolved.
Jones, Jeffery A., Russo, Frank A.
core   +1 more source

Train-induced aerodynamic characteristics of vertical sound barriers influenced by several factors

open access: yesRailway Engineering Science
Investigations into the aerodynamic properties of vertical sound barriers exposed to high-speed operations employ computational fluid dynamics. The primary focus of this research is to evaluate the influence of train speed and the distance (D) from the ...
Xiaowei Qiu   +3 more
doaj   +1 more source

Designing a crisis communication plan in the Chinese Ministry of Railways [PDF]

open access: yes, 2013
This project presents a crisis communication plan for the Chinese Ministry of Railways, as Wenzhou high-speed train crash incident is the background.
Xiong, Shengya
core   +2 more sources

Home - About - Disclaimer - Privacy